Self-oiling swing hook



A. SPEIDEL SELF OILING SWING HOOK Filed July 6, 1926 v afuyual J eidel.

j I I Patented Oct. 16, 1928.

UNITED STATES,

PATENT om AUGUST SPEIDEL, or OMAHA, NEBRASKA.

SELF-OILING SWING HOOK.

Application filed July 6,

. This invention relates to improvements in hooks for use with porch and outdoor swings and for similar purposes. 7 i

- Swings of all typesare usually suspended,

from a stationarysupport to which they are connected b means of, chains. The upper be properly lubricated at alltimes, thereby increaslng the life of the hook and preventing disturbance dueto the squeaking of the parts. i

My invention briefly described consists in surrounding the relatively movable supporting surfaces by means of a basin, pan or other retainer which is adapted to contain a supply of oil, which serves to keep the relatively movable surfaces properly lubricated at alltimes. v a

My invention can be best understood and most clearly described when reference is a had to the accompanying drawing in which it has been illustrated, and in which: a

Figure 1 shows a perspective viewlof one form ofmy invention, a part being broken away to better disclose the construction;

Figure Qis a section taken on line 2 2, Figure 1; and shows the parts in normal position by means of full lines while one of theextreme positions is Iindicated by dot and dash lines;

Figure 3 is a sectlon similar to that shown in Flgurefl, but with the cap removed and a ball point provided instead of thesharp.

point employed in the embodiments, illus? trated in Figures 1 and 2;

Figure 4; is a sectiontaken on" line 4-4, Figure 5, and shows a slightly modified.

form of the hook illustrated in Figures 1 and 2; i Y

Figure 5 is asection taken on line5 p5, Figure 4;

, inserted into operative Figure 6 is a section similar to that shown 192 Serial No. 120,737. i

in Figure 5 but showing the parts in. the extreme position; a iv Figure 7 "s a section of a: modified form of the invention in which the movable members are composed oftwo interconnected eyelets, the1 parts being shown in normal position; an a FigureB is-asection similar to that shown in Figure 7 but withwthe parts in extreme abnormal position. T A M Numerall indicates the shank part of the upper or stationary member. a This shankzis adapted to be passed through an opening in a supporting member which has not; been v shown. The lower part of portion lisbent somewhat as shown in Figure 2 where it forms a substantially closed loop ;having side members 2, 3, 4 and 5, opposite sides [of which are substantially parallel. The

member 5 being somewhat shorter than the opposite member 3 so as toleave a gap 6 through which the movable member 7 can be osition. Located within the loop above re erred to and supported from the inner surfaces of the sides 3 and it is a basin or pan 8, which is preferably of pyramidal shape and which is fastened to the supporting sides 'bygmeans of solder or by beingautogenously welded in place. The sides 9 and 1010f the pan 8 have upwardly extending inwardly curved portions, 11, whose function will hereinafter appear. The movable member, which has been indicated as a whole by numeral is somewhat heart-shaped and has divergent side members 12Iwhose upper ends arecurved and integrally connected to the downwardly extending tapering member 13 whose lower end rests in the apexof the pan 8 inthe'mannershown in Figure 2.

The lowerfendLofthe;,member 7 is formed, into a loop 14: to which the upper link 15- of thechainfis connected; When theparts are assembled in the manner shown in Fig-j ure 2, the chain may be oscillated through; an angle of approximately 1 forty-five degrees from the verticaLwAt this ,angular j K displacement the parts will assume the position shown in dot *and ,dash lines. 50f coursepthe parts may swing ,an equal, angular distance to the other side oithe vertical, 1 thereby making a total angular displacement of approximatelyhninety degrees. Thegeava in" wit iathap eaeis mana t e fiua i with a lubricating oil so that the movable surface of the point 13 will always be separated from; th'efjstirfate otjthepan by a film of oi-li'ft 'i's, of course, evident-"that if the supporting hook is exposed to the weather, that water would find ltiWZLYdQtQ the pan whenever it rained, and since oil is of a smaller specific gravity than -:water',"the" water would naturally displace the oil. In

order to protect againstthe-entt of'wat'r' into the pan, I have provided ,a coverv 16 i w'hichisso constructe'd'that readily be put into place overthe pan, anthwhos'eedges are s a e fieeftlw rei fi ee a s? to permit thememh'er 7 0 move freely n direction indicated nigh-e2;

*In" Figute 3 Tha've shown a cross section which is taken in aplane perpendicular to the planecf the 'loop' formed by sides 2, 3,.

rams. In'this modified fornr th'e'fdown? wardly projecting point l3 f'wliiclrco rlesponds to 'i'nei'n'ber' 13 in Figure 2, isprovided with a spherical point 17 i the bottom of thepan 8 is curvedso as'to conform t (i'tl1e curvature of the point llfi The" upper edges. of oppositesides of pan 8 are bent inward} y i t m nus? dietd bi! e er f numeral 18. Metal plates 19 are secured to the iniier'surfaces of the opposites'i'des of pan 8? ine'ansofsCreWsQO. These n 19 are intended to prevent Upward movement'of the'hea'rt-shaped member 7" by "change the"design'ofthe su 'ap orting alie reason of their 'lower'edges'torming an abut ment which 7 v v I e from being movedu'pwardlyif Although in Figure"3 I have notv shown the cover 1 6,2

this is, intended to be applied in the same manner as-showri in Figuresl and 2. I with the "parts: construct ed' in the manner shfo wn in F igure s 2 3, the swinging of the chain le is limite d It is-evidentthat to an angle of approximately"ninetydef grees'. This may be sufficient porch swings and swings located indoors, but it is not considered sufiicle'nt for'outdoorsw ngs such as 'us'ed on school playgrounds oi" in tlie' "parks." It is, of course, possible to move the I chain through a greater angle than the angle to which thememb'er f can mote, Tor'the reasoirthatafter"the member? has reached the dotted linepo'sition, in Figure 2, the upper'link 1513f :the c'hain" willmo've with respect to the loop 14 which their b'eco nis the pivot-point ahout which the I cillates. Where a greater thanfninety degree-sis contemplated, preferable to illustrated'ih -Figure ldifiers slightly from prevents the spherical part1? shank 35. gswlng "os uch a construction the corresponding part shown in Figures 1,

2 and 3 and instead of having tour sides which forni practicallyia square, ,this' membet is provided with six sides which have been numbered consecutively from 21 to 26. ThesidesQ-Q and 25are parallel with each other, while 23 and 24 form an acute angle and serve as' 'supports for the pan or basin 27. cover 28 which corresponds to the cover 16 in'Figure l has a somewhat semicircular shape like that indicated in Figure 5[ The" lower part of the supporting 1,001 whichcorresponds to and"? in Figur'es'l and 3, respectively, hasbeen indicated as a whol'eby' reference numeral 7 and hfas 'fth same general"shape. .The sides 2 9 and 30 forman'obtuse angle and are connected aii'"arcuate port-ion 31 from the center of which the supporting pin 32 extends ClO WIlwardly in the direction of the shanlc 33 When the parts are in normal position, the

P n .32 'e s s nt e w r fqet po t on" of he pan127: in the mannenshoiyn in Flgures and 5'. This permits the parts? to oscillate in its own plane about the point of the pin 32 from the full line position to the dotted lineposition shown in F gllle 5. is evident from Figure 5thatwhen the pin 32 reaches a "dot tedline posit-iomfthejmemher T 'cannot oscillate farther abou'ttheend I otthe pin and therefore any furtheroscillation'will'take placeahout the point 34- where the angle" between the arcuate portion 31 and the pin 32 engages the upper edge of the pan"27.""The member :17 "can continue to oscillate aboutthis pivot point until it assum e 'sf the position s1 1ow1 1;1n Figure 6 'i and therefore, the shank '33 can move through an. arc of one liundredeighty degrees, which is 1 considered sufficient for outdoor swings. lit

will be noticed that with thefcons truction shown in Figures 4:, i and 6, the pointpf oscillation for the memh'er T" changes during the ninety degriess'wing he eutral to e \'t. re1iie position I i I In Figures 7 and 81 have shown a Sllg'lltl) modified form otmy invention, in which the upper part of the supporting hook, which I-have here designated'by numeral 35 is providedat its lowei' end witlran' eyclet 30 of substantially elliptical shape, having its 7 I of the The lower part of the supporting member has been indicated as a whole reference numeral 37 is provided at major-axis perpendicular to the its upper end hyith an "eyelet 38 which engages in the eyelet 36'inthen1anner clearlyshown.

j The lower; end of part3? has an eyelet 39 to whichthe'upperlink 15 of the chain is connected. A cl'isl1-$ ql d cover' member 40 is provided with a central opening through which the shank 35 is extended and may secured to the latter by'b e in'g seldergu at a po nt 41, It is evidcntthat 35 and'37 may'have aswingi'ng motion with the two" pa rts 7 degrees.

respect to each other and that the are through which the member 37 can swing is.

which the member 37 swings will gradually move to the point shown in Figure 8. The object in this construction is to provide room for thelubricant containing pan 42, which is secured to the member 37 somewhat as shown in Figures 7 and 8. This pan has a "downwardly projecting part 43 that is soldered to the part 37 so as to prevent leakage. The bottom of pan -22 is upwardly inclined and terminates in an upwardly and inwardly inc-lined flange 44. A conical reenforcing member 45 has been shown and this extends from the projection 43 to the outer edge of the bottom of the pan. It is evident that this reenforcing member may be dispensed with if desired. It is necessary that the lubricant shall always be at a level slightly higher thanthe point of contact between the eyelets 36 and 38 and at the same time it is desirable to permit the parts to swing through an arc of one hundred eighty This has been made possible by making the eyelet 36 elliptical so that in moving from the position shown in Figure 7 to that of the position shown in Figure 8, the point about which the pivoting occurs will move sufliciently toprevent the upper edge of the pan from striking the shank 85. If the parts were to remain stationary for any length of time in the position shown in Figure 8, it isevident that the only lubricant that would remain would be that which is contained in the shaded area 46 in Figure 8, but in the first place the parts only remain in this position for a very short time which does not give the oil or lubricant time to flow out, and in the second place it is contemplated to fill the space about the eyelets with waste or other absorbent material which will prevent the free flow of the lubricant, and at the same time permit the surfaces to be properly lubricated.

If the member 7 is oscillated to such an extent that the end. of the pin 18 comes'upover the top of the pan 8, the curved end 11 will prevent the part 7 from moving transversely and will direct it downwardly into the pan.

I wish to call attention to the common idea that is shown in all of the modifications illustrated. This idea broadly described consists in forming the supporting member of two relatively movable parts and attaching to one part a lubricant container which is adapted to contain suflicient lubricant to keep the point of contact between the two members submerged therein, and to provide a cover member which will exclude rain from entering the lubricant pan. The cover' member is made necessary by the fact that oil has a smaller specific gravity than. water and therefore would be gradually displaced by water if the latter could enter the pan.

Having now described the invention what v is claimed as new is:

l. A hook having an upper part provided with means for attaching it to a support, a lower part having its lower end provided with means for making connection witha swing, said parts having cooperating surfaces which prevent longitiudinal separation while permitting relative swingingmovement, a pan secured to one of said members, said pan having a downward depression adapted to contain a lubricant and having its upper edge extending above the level of the cooperating surfaces so that the level of the lubricant may extend over the contacting surface and an upwardly convex cover attached to the upper part for shielding the pan so that water cannot enter from above, said cover member being of such size that its outer periphery extends beyond the edges of the pan.

2. A two part hook for supporting a swing member, one of said parts having means for securing it to an elevated stationary support and the other having means for'securing it to a swing, a pivotal connection between said parts comprising a lubricant pan of pyramidal shape attached to one of said parts and whose sides extend upwardly from a p central apex forming a bearing for the other part which is provided with a depending member engaging said apex so as to give the lower part room to automatically adjust itself laterally, in case the upper part should be out of line with the lower, thislateraladjustment taking place inside of the lubricant pan.

3. A book having upper and lower parts adapted for use in suspending a swing from a stationary support, a pivotal connection between saidparts comprising a lubricant pan of pyramidal shape attached to one of'said parts and whose sides extend upwardly from a central apex forming a bearing for the other part which is provided with a depending member engaging said apex, and a cover member held and fastened to the upper part above said pan and extending over and down around the pan so as toleave ample room for said parts to move freely under and without said cover and protect the pan and parts well from moisture and water.

In testimony whereof I aiiix my signature. 

